NEW Shimano SM-JC41 Di2 Internal Frame Junction Box 4-Port variant-size-15-5 - Mud shedding design for

- Mud shedding design for smooth shifting performance under high load pedaling in muddy conditions

Closure: Dial/Velcro

- Low viscosity grease and optimized fill percentage hits the perfect balance between durability and minimal friction

Dimension 26

Avid CleanSweep Disc Rotors

NEW Shimano SM-JC41 Di2 Internal Frame Junction Box 4-Port variant-size-15-5 - Mud shedding design forShimano Di2 Frame Junction Box Frame Junction Box connects via SD50 E tube wires to four different points: front derailleur, rear derailleur, cockpit junction box and battery mount All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions Use Di2 system checker to update component firmware from http: e tubeproject. shimano. com